Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details)

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Commitments and Contingencies (Details)
1 Months Ended 4 Months Ended 44 Months Ended
Nov. 06, 2017
contractor
Aug. 31, 2018
Mar. 31, 2022
USD ($)
Mar. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Loss Contingencies [Line Items]          
Number of defendants | contractor 9        
Chelsea Group Limited          
Loss Contingencies [Line Items]          
Contingent consideration, liability, revenue earn-outs, payment period (in years)   5 years      
Contingent consideration, liability, fair value at date of acquisition     $ 358,000 $ 358,000 $ 678,000
Payments       0  
Plug Smart          
Loss Contingencies [Line Items]          
Contingent consideration, liability, revenue earn-outs, payment period (in years)     5 years    
Contingent consideration, liability, fair value at date of acquisition     $ 2,061,000 $ 2,061,000  
Payments     $ 0    
Maximum cumulative earn-out         5,000,000
Contingent consideration         $ 2,160,000